When timid eleventh-grader and math genius Kenji Koiso (Ryunosuke Kamiki) is asked by older student and secret crush Natsuki (Nanami Sakuraba) to come with her to her family’s Nagano home for a summer job, he agrees without hesitation. Natsuki’s family, the Jinnouchi clan, dates back to the Muromachi era (1336 to 1573), and they’ve all come together to celebrate the 90th birthday of the spunky matriarch of the family, Sakae. That’s when Kenji discovers his “summer job” is to pretend to be Natsuki’s fiance and dance with her at the birthday celebration. As Kenji attempts to keep up with Natsuki’s act around her family, he receives a strange math problem on his cell phone which, being a math genius, he can’t resist solving. As it turns out, the solution to the mysterious equation causes a bizarre parallel world to collide with Earth, and it’s up to Kenji and his new fake family to put reality back in order. (Source: Twitch)

Mushi-uta's story takes place in the near future. Ten years before the story's opening, strange insect-like creatures known as "Mushi" began appearing. The Mushi are able to consume peoples' dreams and thoughts in return for supernatural powers.Protagonist Daisuke "Kakkou" Kusuriya encounters a young girl named Shiika Anmoto. The two, in time, become quite close. However, unbeknownst to Kakkou, Shiika is an escapee from a secret prison known as GARDEN where those possessed by the Mushi, known as the Mushitsuki are held. GARDEN's military force, the Special Environmental Conservation Executive Office, dispatches its finest killer to track down Shiika. However, they are faced with resistance from the Mushibane resistance organization, led by the secretive "Ladybird". (Source: Anime News Network)

Akira Narumiya is a socially dispositioned bookworm trying to mind is own business but he one day crosses paths with a strange little girl dressed in a bunny robe. Akira is drageed into the world of imaginations after finding out that the little girl possesses the power to allow imaginations to become when another individual comes in contact with her.

After the death of her close friend Mari Hanashiro, Arisu Ichinokuro inherits Mari's Mushi (insect-like creatures that consume peoples' dreams and thoughts in return for supernatural powers), Morpho Butterfly. In order to find out the reason she was given her Mushi, Arisu sets out to find out more about Mushi and Mushitsuki with the aid of Daisuke "Kakkou" Kusuriya, an agent of the Special Environmental Conservation Executive Office assigned to be her bodyguard.

Two years have passed since the transformation of Tokyo. Highschool student Akizuki Renji along with the popular idol Yumiie Kanata became "invaders" whose job is to invade "Critical Zone: Tokyo." At the dead city known to be controlled by "the enemies of mankind." Can the promise sworn between Renji and Kanata be fulfilled!? (Source: Translated from official description)

Mushi-uta's story takes place in the near future. Ten years before the story's opening, strange insect-like creatures known as "Mushi" began appearing. The Mushi are able to consume peoples' dreams and thoughts in return for supernatural powers. Protagonist Daisuke "Kakkou" Kusuriya encounters a young girl named Shiika Anmoto. The two, in time, become quite close. However, unbeknownst to Kakkou, Shiika is an escapee from a secret prison known as GARDEN where those possessed by the Mushi, known as the Mushitsuki are held. GARDEN's military force, the Special Environmental Conservation Executive Office, dispatches its finest killer to track down Shiika. However, they are faced with resistance from the Mushibane resistance organization, led by the secretive "Ladybird". (Source: Anime News Network)